1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2020 Intel Corporation
3 */
4
5 #include <stdlib.h>
6 #include <string.h>
7
8 #include "rte_pie.h"
9 #include <rte_malloc.h>
10
11 #ifdef __INTEL_COMPILER
12 #pragma warning(disable:2259) /* conversion may lose significant bits */
13 #endif
14
15 int
rte_pie_rt_data_init(struct rte_pie * pie)16 rte_pie_rt_data_init(struct rte_pie *pie)
17 {
18 if (pie == NULL) {
19 RTE_LOG(ERR, SCHED, "%s: Invalid addr for pie\n", __func__);
20 return -EINVAL;
21 }
22
23 memset(pie, 0, sizeof(*pie));
24
25 return 0;
26 }
27
28 int
rte_pie_config_init(struct rte_pie_config * pie_cfg,const uint16_t qdelay_ref,const uint16_t dp_update_interval,const uint16_t max_burst,const uint16_t tailq_th)29 rte_pie_config_init(struct rte_pie_config *pie_cfg,
30 const uint16_t qdelay_ref,
31 const uint16_t dp_update_interval,
32 const uint16_t max_burst,
33 const uint16_t tailq_th)
34 {
35 uint64_t tsc_hz = rte_get_tsc_hz();
36
37 if (pie_cfg == NULL)
38 return -1;
39
40 if (qdelay_ref <= 0) {
41 RTE_LOG(ERR, SCHED,
42 "%s: Incorrect value for qdelay_ref\n", __func__);
43 return -EINVAL;
44 }
45
46 if (dp_update_interval <= 0) {
47 RTE_LOG(ERR, SCHED,
48 "%s: Incorrect value for dp_update_interval\n", __func__);
49 return -EINVAL;
50 }
51
52 if (max_burst <= 0) {
53 RTE_LOG(ERR, SCHED,
54 "%s: Incorrect value for max_burst\n", __func__);
55 return -EINVAL;
56 }
57
58 if (tailq_th <= 0) {
59 RTE_LOG(ERR, SCHED,
60 "%s: Incorrect value for tailq_th\n", __func__);
61 return -EINVAL;
62 }
63
64 pie_cfg->qdelay_ref = (tsc_hz * qdelay_ref) / 1000;
65 pie_cfg->dp_update_interval = (tsc_hz * dp_update_interval) / 1000;
66 pie_cfg->max_burst = (tsc_hz * max_burst) / 1000;
67 pie_cfg->tailq_th = tailq_th;
68
69 return 0;
70 }
71